In Islam, there is a hadith about a sex worker who found a stray dog. The day was unbearably hot, and the dog was dying of thirst. The sex worker had been on her way somewhere—perhaps she was in a hurry—but still, she took the time to fill her shoe with water from a well and give it to the dog. For this one simple act of kindness, God forgave her for her sins, and she was admitted into heaven.
